EP2062627B1 - Modellhelikopter - Google Patents

Modellhelikopter Download PDF

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Publication number
EP2062627B1
EP2062627B1 EP08002126A EP08002126A EP2062627B1 EP 2062627 B1 EP2062627 B1 EP 2062627B1 EP 08002126 A EP08002126 A EP 08002126A EP 08002126 A EP08002126 A EP 08002126A EP 2062627 B1 EP2062627 B1 EP 2062627B1
Authority
EP
European Patent Office
Prior art keywords
gear
assembly
main
belt
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08002126A
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English (en)
French (fr)
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EP2062627A1 (de
Inventor
Zhihong Luo
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP2062627A1 publication Critical patent/EP2062627A1/de
Application granted granted Critical
Publication of EP2062627B1 publication Critical patent/EP2062627B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H27/00—Toy aircraft; Other flying toys
    • A63H27/12—Helicopters ; Flying tops

Definitions

  • the present invention relates to an aviation model, especially it relates to a model helicopter of the kind referred to in the preamble portion of claim 1.
  • a model helicopter has been known from US-A-5 836 545 .
  • Model helicopters are popular to people since they appeared, so the model manufacturers developed new helicopter models and improved them continuously to make an expecting model helicopter with simple structure, easy assembly, stable flight, and easy control on the base of satisfying consumer demands.
  • the power supply system of the coaxial helicopter model is composed of two power motors and two master gears both fed by oil and/or electric energy, however, the complex assembling process and high assembly technology of two power motors causes high costs in manufacturing and maintenance.
  • US 3,093,929 A discloses a model helicopter comprising a main rotation assembly, a power assembly, a main frame, a landing gear, a canopy and an electronic assembly, wherein said power assembly includes an engine assembly and a gear assembly.
  • US-A-5 836 545 discloses a model helicopter comprising a power plant, a main rotor, a tail rotor and a drive apparatus which may include a belt-drive system.
  • One object of the present invention is to provide a kind of oil burning coaxial helicopter model with simple structure, easy assembly, and stable flight.
  • the present invention provides a model helicopter according to claim 1.
  • Said main rotation assembly includes a flybar assembly, an upper blade, a main blade, a small axle, a hollow axle, a swashplate, a first blade connector, and a second blade connector; said flybar assembly is located at the top of said main frame, and is connected to said first blade connector, a lower end of said first blade connector is connected to one end of said small axle, said small axle is throughout said hollow axle, the other end of said small axle is connected to said power assembly; a middle portion of said hollow axle is connected to said second blade connector, said second blade connector is connected to said main blade, one end of said hollow axle closing to said power assembly is connected to said swashplate, one end of said swashplate closing to said main blade is connected to said second blade connector with said first pull rod, the other end of said swashplate is connected to a servo of said electronic assembly with said second pull rod; one end of said hollow axle closing to said main gear is connected to said main gear throughout said main frame.
  • Said belt is a V-shaped belt or a flat-belt.
  • Said main gear is connected to said synchronous belt pulley with a fixed piece.
  • Said main gear, said synchronous belt pulley, and said belt gear have the same modulus. It has blade clip joints on both ends of said first blade connector and said second blade connector.
  • Said hollow axle is connected to said main frame with said fixed piece.
  • the present invention uses an engine combined with a gear assembly to drive a main rotation assembly and a tail rotation assembly simultaneously, and is successfully applied in the synchronous working of said main rotation assembly and said tail rotation assembly to improve flight stability of model helicopter effectively; meanwhile, it avoids the traditional providing of a dynamic model with two power motors and two master gears in a coaxial helicopter model, and simplifies the dynamic supplying system of model helicopter. Therefore, the model helicopter provided in present invention has simple structure, easy assembly, stable flight, and reduces production costs of model helicopter greatly.
  • Fig.1 is an exploded diagram of an embodiment of the model helicopter of the present invention.
  • Fig.2 is a perspective view of the power assembly shown in Fig.1 .
  • Fig.1 is an exploded diagram of an embodiment of the model helicopter of the present invention.
  • the model helicopter in present invention as fig.1 includes a main rotation assembly, a power assembly, a main frame, a landing gear 4, a canopy 5, an electronic assembly 6, a tail rotation assembly 7, and a fixed piece.
  • Said fixed piece is a standard assembly such as a nut and a bolt.
  • Sa id main rotation assembly includes a flybar assembly 11, an upper blade 12, a main blade 13, a first blade connector 14, a second blade connector 18, a small axle 15, a hollow axle 16, a swashplate 17, and a fixed piece.
  • Said flybar assembly 11 is defined in the top end of said main frame, and is connected to said first blade connector 14 with said fixed piece. Its function is to maintain the balance of the helicopter in flight, and to realize a stable flight.
  • Said small axle 15 is fixed in the lower end of said first blade connector 14, and said upper blade 12 is fixed in both sides of said first blade connector 14. Said small axle 15 runs through said hollow axle 16 until the fixed piece of said synchronous belt pulley 25 in said power assembly, and is connected to said fixed piece.
  • Rotation of said synchronous belt pulley 25 drives said small axle 15 which is connected to said second blade connector 18 with said fixed piece, thus realizes the synchronous rotation of said main blade 13, said flybar assembly 11, and said small axle 15.
  • Said hollow axle 16 is outside said small axle 15, a middle portion of said hollow axle 16 is connected to said second blade connector 18 with said fixed piece.
  • Said second blade connector 18 is fixed to said main blade 13, a lower end of said hollow axle 16 is fixed to said swashplate 17, the upper end of said swashplate 17 is connected to said second blade connector 18 with a pull rod 191, the lower end of said swashplate 17 is connected to a servo 193 in said electronic assembly 6 with a pull rod 192.
  • the steering control of model helicopter in present invention can be realized through the control of said electronic assembly 6 by said servo 193.
  • the lower part of said hollow axle 16 runs through said main frame and is connected to said fixed piece of said main gear 22 which drives the rotation of said hollow axle 16, thus realizes the rotation of said main blade 13.
  • Said tail rotation assembly 7 is connected to a belt gear 23 with a belt 24, so the rotation of said tail rotation assembly is realized by the rotating of said belt gear 23.
  • Fig.2 is an exploded diagram of the power assembly shown in Fig.1 .
  • Said power assembly 2 includes an engine assembly 2A, a gear assembly 2B, and a fixed piece.
  • Said engine assembly 2A includes an engine 27, an engine gear 28, and an oil tank 26.
  • Said oil tank 26 provides fuel to said engine 27 through pipes.
  • the drive power caused by said engine 27 is transmitted to said main gear 22 through meshed engine gears 28, meanwhile, the drive power is further transmitted to said main rotation assembly 1 and said tail rotation assembly 7 through said main gear 22.
  • Said gear assembly 2B includes a main gear 22, a synchronous belt pulley 25, a belt gear 23, and a fixed piece.
  • a hollow axle 21 is inside said main gear 22, and is connected to said main gear 22 with a fixed piece.
  • Said main gear 22 is connected to said synchronous belt pulley 25 with said fixed piece, and a small axle 20 and its fixed piece are defined inside said synchronous belt pulley 25.
  • Said synchronous belt pulley 25 is connected to the lower end of said belt gear 23 with a belt 24, the upper end of said belt gear 23 is connected to said tail rotation assembly 7 with said belt 24, a middle portion of said belt gear 23 is connected to said main gear 22.
  • the power assembly 2 When an engine gear 28 rotates, the power assembly 2 will drive said main rotation assembly 1 and said tail rotation assembly 7 rotating simultaneously, which is successfully applied in the coaxial helicopter model with only one power system and one set of main gear to guarantee the stable flight of the model helicopter.
  • Said main gear 22, said synchronous belt pulley 25, and said belt gear 23 have the same modulus to obtain a good combination.

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  • Toys (AREA)

Claims (8)

  1. Modellhelikopter mit einem Hauptdrehkranz (1), einem Leistungsaggregat (2), einem Hauptrahmen, einem Fahrwerk (4), einer Kabinenhaube (5), einer elektronischen Baugruppe (6), wobei das Leistungsaggregat (2) eine Motoreinheit (2A) und eine Getriebeeinheit (2B) aufweist, wobei die Motoreinheit (2A) einen Motor (27), ein Motorgetriebe (28) und einen Treibstofftank (26) aufweist, wobei der Treibstofftank (26) Treibstoff durch Rohre an den Motor (27) liefert, dadurch gekennzeichnet, dass die Getriebeanordnung ein Hauptzahnrad (22), ein Zahnriemenrad (25) und ein Riemenvorgelege (23) aufweist, wobei das Hauptzahnrad (22) mit dem Motorgetriebe (28) in Eingriff steht und ein unterer Bereich des Hauptzahnrads (22) mit dem Zahnriemenrad (25) verbunden ist, und ein oberes Ende des Riemenvorgeleges (23) mit einer Heckrotationsanordnung (7) über einen Riemen (24) verbunden ist, wobei ein mittlerer Bereich des Riemenvorgeleges (23) mit dem Hauptzahnrad (22) in Eingriff steht, und ein unteres Ende des Riemenvorgeleges (23) über einen Riemen mit dem Zahnriemenrad (25) verbunden ist.
  2. Modellhelikopter nach Anspruch 1, wobei das Hauptrotationsaggregat eine Paddelstangenanordnung (11), ein oberes Rotorblatt (12), ein Hauptrotorblatt (13), eine dünne Achse (15), eine Hohlachse (16) und eine Taumelscheibe (17), einen ersten Rotorblattverbinder (14) und einen zweiten Rotorblattverbinder (18) aufweist, wobei die Paddelstangenanordnung (11) an der Oberseite des Hauptrahmens angeordnet und mit dem ersten Rotorblattverbinder (14) verbunden ist, wobei ein unteres Ende des ersten Rotorblattverbinders (14) mit einem Ende der kurzen Achse (15) verbunden ist, und die kurze Achse (15) durch die Hohlachse (16) geht, und das andere Ende der kurzen Achse (15) mit dem Leistungsaggregat verbunden ist, wobei ein mittlerer Bereich der Hohlachse (16) mit dem zweiten Rotorblattverbinder (18) verbunden ist, und der zweite Rotorblattverbinder (18) mit dem Hauptrotorblatt (13) verbunden ist, wobei ein Ende der Hohlachse (16), welches dicht an dem Leistungsaggregat liegt, mit der Taumelscheibe (17) verbunden ist, und wobei ein Ende der Taumelscheibe (17), welches nahe dem Hauptrotorblatt (13) angeordnet ist, mit dem zweiten Rotorblattverbinder (18) über eine Zugstange (191) verbunden ist, und das andere Ende der Taumelscheibe (17) mit einer Servovorrichtung (193) der elektronischen Baugruppe (6) über eine zweite Zugstange (192) verbunden ist, wobei ein Ende der Hohlachse (16), welches dicht an dem Hauptzahnrad (22) liegt, über den Hauptrahmen mit dem Hauptzahnrad (22) verbunden ist.
  3. Modellhelikopter nach Anspruch 1, wobei eine Kraftstoffpumpe zwischen dem Kraftstofftank (26) und dem Motor angeordnet ist.
  4. Modellhelikopter nach Anspruch 1, wobei der Riemen (24) ein V-förmiger Riemen oder ein flacher Riemen ist.
  5. Modellhelikopter nach Anspruch 1, wobei das Hauptgetriebe (22) mit dem Zahnriemenrad über ein feststehendes Teil verbunden ist.
  6. Modellhelikopter nach Anspruch 1, wobei das Hauptgetriebe (22), das Zahnriemenrad (25) und das Riemenvorgelege (23) den gleichen Modul aufweisen.
  7. Modellhelikopter nach Anspruch 2, wobei Rotorblattklemmverbindungen an beiden Enden des ersten Rotorblattverbinders (14) und des zweiten Rotorblattverbinders (18) angeordnet sind.
  8. Modellhelikopter nach Anspruch 2, wobei die Hohlachse (16) mit dem Hauptrahmen über ein feststehendes Teil verbunden ist.
EP08002126A 2007-11-26 2008-02-05 Modellhelikopter Not-in-force EP2062627B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200720060095 2007-11-26

Publications (2)

Publication Number Publication Date
EP2062627A1 EP2062627A1 (de) 2009-05-27
EP2062627B1 true EP2062627B1 (de) 2012-04-11

Family

ID=40433965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002126A Not-in-force EP2062627B1 (de) 2007-11-26 2008-02-05 Modellhelikopter

Country Status (5)

Country Link
US (1) US8096497B2 (de)
EP (1) EP2062627B1 (de)
JP (1) JP3141209U (de)
CN (1) CN201223730Y (de)
AT (1) ATE552896T1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9067677B2 (en) * 2009-12-02 2015-06-30 Saab Ab Dismountable helicopter
CN101837195B (zh) * 2010-01-21 2012-02-08 罗之洪 一种垂直起降的模型飞机
RU2452871C1 (ru) * 2010-11-19 2012-06-10 Александр Сергеевич Дорофеев Летающий заводной вертолет
CN202096734U (zh) * 2011-05-24 2012-01-04 深圳市沈氏彤创航天模型有限公司 倾斜循环螺距与集体螺距控制机构
CN105314103B (zh) * 2013-12-17 2017-07-25 易瓦特科技股份公司 旋翼机传动装置
CN104691767A (zh) * 2014-06-19 2015-06-10 安阳全丰航空植保科技有限公司 发动机有水冷的无人直升机减震系统及减震方法
CN104943868B (zh) * 2015-07-15 2016-09-07 合肥工业大学 一种轻型无人直升机传动系统装置
CN106552426A (zh) * 2015-09-25 2017-04-05 郑华耀 多螺旋桨推进系统高空飞行装置
CN106552428A (zh) * 2015-09-25 2017-04-05 郑华耀 齿轮传动航模
CN106552427A (zh) * 2015-09-25 2017-04-05 郑华耀 多级齿轮减速系统航模
CN105905292B (zh) * 2016-05-03 2024-04-16 北京京东乾石科技有限公司 螺旋桨安装结构及无人机
CN106628202A (zh) * 2016-10-17 2017-05-10 深圳高科新农技术有限公司 一种无人机
CN108657448B (zh) * 2018-06-04 2020-06-30 北京海空行科技有限公司 一种电动共轴式无人直升机传动系统
CN109533310B (zh) * 2018-10-18 2022-05-06 沈阳理工大学 一种机动发射可折叠式微型共轴双旋翼悬浮装置

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US3093929A (en) 1961-01-16 1963-06-18 Robbins Saul Toy helicopters
US3572616A (en) * 1969-09-18 1971-03-30 United Aircraft Corp Pitch control mechanism for bladed rotor
US5609312A (en) * 1991-09-30 1997-03-11 Arlton; Paul E. Model helicopter
US6886777B2 (en) * 2001-02-14 2005-05-03 Airscooter Corporation Coaxial helicopter
US20030093294A1 (en) * 2001-11-09 2003-05-15 Passantino Philip J. System providing expanded expert and electronic consultations for clients
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US7065528B2 (en) * 2002-07-24 2006-06-20 Herz Frederick S M Professional referral network
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US7883392B2 (en) * 2008-08-04 2011-02-08 Silverlit Toys Manufactory Ltd. Toy helicopter
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US20090146001A1 (en) * 2007-12-11 2009-06-11 Shigetada Taya Power transmission system for an aircraft

Also Published As

Publication number Publication date
CN201223730Y (zh) 2009-04-22
US20090134269A1 (en) 2009-05-28
JP3141209U (ja) 2008-04-24
EP2062627A1 (de) 2009-05-27
US8096497B2 (en) 2012-01-17
ATE552896T1 (de) 2012-04-15

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